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A random variable X takes values 0, 1, 2...

A random variable X takes values 0, 1, 2, 3, …. With probability `P(X=x)=k(x+1)((1)/(5))^(x)`, where k is constant, then `P(X=0)` is a)`7//25` b)`18//25` c)`13//25` d)`16//25`

A

`7//25`

B

`18//25`

C

`13//25`

D

`16//25`

Text Solution

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The correct Answer is:
D
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